Home / 320,833,789.80-442,737,875.34-181,633,426.80

Finding the Fourth Proportional to 320,833,789.80, 442,737,875.34 and 181,633,426.80

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Solution

The fourth proportional to 320,833,789.80, 442,737,875.34 and 181,633,426.80 is: 250,646,908.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,833,789.80 : 442,737,875.34 = 181,633,426.80 : x
  2. Step 2: Convert to fraction form
    320,833,789.80/442,737,875.34 = 181,633,426.80/x
  3. Step 3: Cross multiply
    320,833,789.80x = 442,737,875.34 × 181,633,426.80
  4. Step 4: Simplify right side
    320,833,789.80x = 80,415,997,472,155,408
  5. Step 5: Solve for x
    x = 80,415,997,472,155,408/320,833,789.80
  6. Step 6: Final answer
    x = 250,646,908.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.